package com.learn.demo.netty.heartbeat;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.timeout.IdleStateEvent;

/**
 * 自定义消息处理handler
 */
public class MyHeartbeatDemoServerHandler extends SimpleChannelInboundHandler {
    @Override
    protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {

    }

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if(evt instanceof IdleStateEvent){
            IdleStateEvent idleStateEvent = (IdleStateEvent) evt;
            String eventType = "";
            switch (idleStateEvent.state()){
                case READER_IDLE:
                    eventType = "读空闲";
                    break;
                case WRITER_IDLE:
                    eventType = "写空闲";
                    break;
                case ALL_IDLE:
                    eventType = "读写空闲";
                    break;
                default:
                    break;
            }
            System.out.println(ctx.channel().remoteAddress() + "=======================超时事件发生：" + eventType);
        }
    }
}
